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US 7,678,213 B1Granted
Operating methods for a batch commercial metal coil laminating line
AssigneeDesign Analysis, Inc.
InventorsMark V. Loen, James E. Velliky
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Abstract
Important features and improvements of a commercial coil batch laminating production line are disclosed for a successful, commercial, and economical operation. This invention addresses important processing sequences, operating parameters, control systems, designs, operating methods, and other novel features. This invention provides for a competitive cost structure meeting the needs of commercialization.
Claims16
An improved commercial batch laminating process for a flat metal substrate comprising:
- a. continuously unwinding a coil of said flat metal substrate by controlling the tension and speed of said flat metal substrate,
- b. pretreating one or both major surfaces of said flat metal substrate by raising the surface energy of any said major surface to at least 55 dynes,
- c. preheating said flat metal substrate to a laminating temperature,
- d. pressing a laminating film onto any said pretreated major surface of said flat metal substrate thereby creating a film-metal laminate, wherein each said pretreated major surface of said flat metal substrate may have a different said laminating film,
- e. wherein any of said laminating film comprises primarily a thermoplastic polymer,
- f. reheating said film-metal laminate to a post treatment temperature,
- g. cooling said film-metal laminate to a winding temperature,
- h. wherein the threaded length of said flat metal substrate in said commercial batch laminating process is less than 200 feet, and
- i. wherein said commercial batch laminating process includes the capability to dynamically trim any laminating film which is wider than said flat metal substrate to substantially the same width as said flat metal substrate.
6 more elements
Dependencies are inferred from the claim text.